The following dotplot describes the lengths, in pages, of a sample consisting of 20 reports generated by a consulting firm during the past 3 months. Based on the dotplot, what are the values for the median and the first and third quartiles?

A computer and statistical software will be desirable and useful. However, any necessary calculations can also be done with the aid of a pocket calculator. For readers using statistical software, keep in mind the file-naming key— for example, the data for Exercise 3.57 will be in data file XR03057.

In exercise

Transcribed Image Text:

PAGES 10 20 30 40 50 2.20 195 2.15 2.08 85 92 2.23 2.19 98 2.07 2.24 2.31 196 2.30 2.27 .89